56061 20250619084222.0 doi 10.1038/srep24915 sideral 94964 ART-2016-94964 eng Gambuzza, L.V. Amplitude dynamics favors synchronization in complex networks 2016 Access copy available to the general public Unrestricted In this paper we study phase synchronization in random complex networks of coupled periodic oscillators. In particular, we show that, when amplitude dynamics is not negligible, phase synchronization may be enhanced. To illustrate this, we compare the behavior of heterogeneous units with both amplitude and phase dynamics and pure (Kuramoto) phase oscillators. We find that in small network motifs the behavior crucially depends on the topology and on the node frequency distribution. Surprisingly, the microscopic structures for which the amplitude dynamics improves synchronization are those that are statistically more abundant in random complex networks. Thus, amplitude dynamics leads to a general lowering of the synchronization threshold in arbitrary random topologies. Finally, we show that this synchronization enhancement is generic of oscillators close to Hopf bifurcations. To this aim we consider coupled FitzHugh-Nagumo units modeling neuron dynamics. info:eu-repo/grantAgreement/ES/DGA/E19 info:eu-repo/grantAgreement/ES/MINECO/FIS2012-38266 info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.259 2016 MULTIDISCIPLINARY SCIENCES 10 / 63 = 0.159 2016 Q1 T1 1.691 2016 Multidisciplinary 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gómez-Gardeñes, J. Universidad de Zaragoza (orcid)0000-0001-5204-1937 Frasca, M. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 6 (2016), 24915[9pp] Sci. rep. (Nat. Publ. Group) Scientific reports (Nature Publishing Group) 2045-2322 1088954 http://zaguan.unizar.es/record/56061/files/texto_completo.pdf Versión publicada 108093 http://zaguan.unizar.es/record/56061/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:56061 articulos driver 2025-06-19-08:41:23 ARTICLE